Any one who considers these factors either separately or in combination will easily see that as the Roman empire proved invincible against other kings and nations, so it would have proved invincible against Alexander.

Let us, first of all, compare the commanders on each side. I do not dispute that Alexander was an exceptional general, but his reputation is enhanced by the fact that he died while still young and before he had time to experience any change of fortune.

Not to mention other kings and illustrious captains, who afford striking examples of the mutability of human affairs, I will only instance Cyrus, whom the Greeks celebrate as one of the greatest of men. What was it that exposed him to reverses and misfortunes but the length of his life, as recently in the case of Pompey the Great?

Let me enumerate the Roman generals —not all out of all ages but only those with whom as consuls and Dictators Alexander would have had to fight —

M. Valerius Corvus, C. Marcius Rutilus, C. Sulpicius, T. Manlius Torquatus, Q. Publilius Philo, L. Papirius Cursor, Q. Fabius Maximus, the two Decii, L. Volumnius, and Manlius Curius. Following these come those men of colossal mould who would have confronted him if he had first turned his arms against Carthage and then crossed over into Italy later in life.

Every one of these men was Alexander's equal in courage and ability, and the

art of war, which from the beginning of the City had been an unbroken tradition, had now grown into a science based on definite and permanent rules. It was thus that the kings conducted their wars, and alter them the Junii and the Valerii, who expelled the kings, and in later succession the Fabii, the Quinctii, and the Cornelii.

It was these rules that Camillus followed, and the men who would have had to fight with Alexander had seen Camillus as an old man when they were little more than boys. Alexander no doubt did all that a soldier ought to do in battle, and that is not his least title to fame.

But if Manlius Torquatus had been opposed to him in the field, would he have been inferior to him in this respect, or Valerius Corvus, both of them distinguished as soldiers before they assumed command?

Would the Decii, who, after devoting themselves, rushed upon the enemy, or Papirius Cursor with his vast physical courage and strength?

Would the clever generalship of one young man have succeeded in baffling the whole senate, not to mention individuals, that senate of which he, who declared that it was composed of kings, alone formed a true idea?